RWBY May Cry

Humanity and Faunus have both roamed the world for countless generations but one thing that has been lost though not forgotten is the third subsection of humanity: The Demons...
How could an entire species of not-quite humans just vanish into nothing but myths and old tales?

That's one thing that Jae Cielo wants to figure out as he discovers a book on Demons in the library at Beacon

So this is a story that is both a What-if of if Jaune never got accepted into Beacon and someone took his place...and also a story of a Devil May Cry inspired OC trying to become a Hunstman